| **Goodwill And Other Intangible Assets (Schedule Of Gross Carrying Amount Of Other Intangible Assets And Related Accumulated Amortization) (Details) (USD $)In Millions, unless otherwise specified** | Jun. 29, 2013 | Dec. 29, 2012 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|---------------|
| **Goodwill And Other Intangible Assets [Line Items]**                                                                                                                                                 |          |          |
| Gross Carrying Amount                                                                                                                                                                                 | $ 982         | $ 1,032       |
| Accumulated Amortization                                                                                                                                                                              | 382           | 386           |
| Indefinite-lived intangible assets                                                                                                                                                                    | 277           | 158           |
| Purchased Technology And Patents [Member]                                                                                                                                                             |          |          |
| **Goodwill And Other Intangible Assets [Line Items]**                                                                                                                                                 |          |          |
| Gross Carrying Amount                                                                                                                                                                                 | 934           | 947           |
| Accumulated Amortization                                                                                                                                                                              | 354           | 336           |
| Customer Lists And Relationships [Member]                                                                                                                                                             |          |          |
| **Goodwill And Other Intangible Assets [Line Items]**                                                                                                                                                 |          |          |
| Gross Carrying Amount                                                                                                                                                                                 | 22            | 57            |
| Accumulated Amortization                                                                                                                                                                              | 15            | 36            |
| Trademarks and Trade Names [Member]                                                                                                                                                                   |          |          |
| **Goodwill And Other Intangible Assets [Line Items]**                                                                                                                                                 |          |          |
| Gross Carrying Amount                                                                                                                                                                                 | 22            | 22            |
| Accumulated Amortization                                                                                                                                                                              | 11            | 10            |
| Licenses, Distribution Agreements And Other [Member]                                                                                                                                                  |          |          |
| **Goodwill And Other Intangible Assets [Line Items]**                                                                                                                                                 |          |          |
| Gross Carrying Amount                                                                                                                                                                                 | 4             | 6             |
| Accumulated Amortization                                                                                                                                                                              | 2             | 4             |
| In Process Research and Development [Member]                                                                                                                                                          |          |          |
| **Goodwill And Other Intangible Assets [Line Items]**                                                                                                                                                 |          |          |
| Indefinite-lived intangible assets                                                                                                                                                                    | 228           | 109           |
| Trademarks and Trade Names [Member]                                                                                                                                                                   |          |          |
| **Goodwill And Other Intangible Assets [Line Items]**                                                                                                                                                 |          |          |
| Indefinite-lived intangible assets                                                                                                                                                                    | $ 49          | $ 49          |

| X                                                                                                                                                                     |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275
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